# Yahoo! UI Library

### Container 2.8.1

Yahoo! UI Library > container > SimpleDialog.js (source view)
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    (function () {

        /**
        * SimpleDialog is a simple implementation of Dialog that can be used to
        * submit a single value. Forms can be processed in 3 ways -- via an
        * asynchronous Connection utility call, a simple form POST or GET,
        * or manually.
        * @namespace YAHOO.widget
        * @class SimpleDialog
        * @extends YAHOO.widget.Dialog
        * @constructor
        * @param {String} el The element ID representing the SimpleDialog
        * <em>OR</em>
        * @param {HTMLElement} el The element representing the SimpleDialog
        * @param {Object} userConfig The configuration object literal containing
        * the configuration that should be set for this SimpleDialog. See
        * configuration documentation for more details.
        */
        YAHOO.widget.SimpleDialog = function (el, userConfig) {

            YAHOO.widget.SimpleDialog.superclass.constructor.call(this,
                el, userConfig);

        };

        var Dom = YAHOO.util.Dom,
            SimpleDialog = YAHOO.widget.SimpleDialog,

            /**
            * Constant representing the SimpleDialog's configuration properties
            * @property DEFAULT_CONFIG
            * @private
            * @final
            * @type Object
            */
            DEFAULT_CONFIG = {

                "ICON": {
                    key: "icon",
                    value: "none",
                    suppressEvent: true
                },

                "TEXT": {
                    key: "text",
                    value: "",
                    suppressEvent: true,
                    supercedes: ["icon"]
                }

            };

        /**
        * Constant for the standard network icon for a blocking action
        * @property YAHOO.widget.SimpleDialog.ICON_BLOCK
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_BLOCK = "blckicon";

        /**
        * Constant for the standard network icon for alarm
        * @property YAHOO.widget.SimpleDialog.ICON_ALARM
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_ALARM = "alrticon";

        /**
        * Constant for the standard network icon for help
        * @property YAHOO.widget.SimpleDialog.ICON_HELP
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_HELP  = "hlpicon";

        /**
        * Constant for the standard network icon for info
        * @property YAHOO.widget.SimpleDialog.ICON_INFO
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_INFO  = "infoicon";

        /**
        * Constant for the standard network icon for warn
        * @property YAHOO.widget.SimpleDialog.ICON_WARN
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_WARN  = "warnicon";

        /**
        * Constant for the standard network icon for a tip
        * @property YAHOO.widget.SimpleDialog.ICON_TIP
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_TIP   = "tipicon";

        /**
        * Constant representing the name of the CSS class applied to the element
        * created by the "icon" configuration property.
        * @property YAHOO.widget.SimpleDialog.ICON_CSS_CLASSNAME
        * @static
        * @final
        * @type String
        */
        SimpleDialog.ICON_CSS_CLASSNAME = "yui-icon";

        /**
        * Constant representing the default CSS class used for a SimpleDialog
        * @property YAHOO.widget.SimpleDialog.CSS_SIMPLEDIALOG
        * @static
        * @final
        * @type String
        */
        SimpleDialog.CSS_SIMPLEDIALOG = "yui-simple-dialog";

        YAHOO.extend(SimpleDialog, YAHOO.widget.Dialog, {

            /**
            * Initializes the class's configurable properties which can be changed
            * using the SimpleDialog's Config object (cfg).
            * @method initDefaultConfig
            */
            initDefaultConfig: function () {

                SimpleDialog.superclass.initDefaultConfig.call(this);

                // Add dialog config properties //

                /**
                * Sets the informational icon for the SimpleDialog
                * @config icon
                * @type String
                * @default "none"
                */
                this.cfg.addProperty(DEFAULT_CONFIG.ICON.key, {
                    handler: this.configIcon,
                    value: DEFAULT_CONFIG.ICON.value,
                    suppressEvent: DEFAULT_CONFIG.ICON.suppressEvent
                });

                /**
                * Sets the text for the SimpleDialog
                * @config text
                * @type String
                * @default ""
                */
                this.cfg.addProperty(DEFAULT_CONFIG.TEXT.key, {
                    handler: this.configText,
                    value: DEFAULT_CONFIG.TEXT.value,
                    suppressEvent: DEFAULT_CONFIG.TEXT.suppressEvent,
                    supercedes: DEFAULT_CONFIG.TEXT.supercedes
                });

            },

            /**
            * The SimpleDialog initialization method, which is executed for
            * SimpleDialog and all of its subclasses. This method is automatically
            * called by the constructor, and  sets up all DOM references for
            * pre-existing markup, and creates required markup if it is not
            * already present.
            * @method init
            * @param {String} el The element ID representing the SimpleDialog
            * <em>OR</em>
            * @param {HTMLElement} el The element representing the SimpleDialog
            * @param {Object} userConfig The configuration object literal
            * containing the configuration that should be set for this
            * SimpleDialog. See configuration documentation for more details.
            */
            init: function (el, userConfig) {

                /*
                    Note that we don't pass the user config in here yet because we
                    only want it executed once, at the lowest subclass level
                */

                SimpleDialog.superclass.init.call(this, el/*, userConfig*/);

                this.beforeInitEvent.fire(SimpleDialog);

                Dom.addClass(this.element, SimpleDialog.CSS_SIMPLEDIALOG);

                this.cfg.queueProperty("postmethod", "manual");

                if (userConfig) {
                    this.cfg.applyConfig(userConfig, true);
                }

                this.beforeRenderEvent.subscribe(function () {
                    if (! this.body) {
                        this.setBody("");
                    }
                }, this, true);

                this.initEvent.fire(SimpleDialog);

            },

            /**
            * Prepares the SimpleDialog's internal FORM object, creating one if one
            * is not currently present, and adding the value hidden field.
            * @method registerForm
            */
            registerForm: function () {

                SimpleDialog.superclass.registerForm.call(this);

                this.form.innerHTML += "<input type=\"hidden\" name=\"" +
                    this.id + "\" value=\"\"/>";

            },

            // BEGIN BUILT-IN PROPERTY EVENT HANDLERS //

            /**
            * Fired when the "icon" property is set.
            * @method configIcon
            * @param {String} type The CustomEvent type (usually the property name)
            * @param {Object[]} args The CustomEvent arguments. For configuration
            * handlers, args[0] will equal the newly applied value for the property.
            * @param {Object} obj The scope object. For configuration handlers,
            * this will usually equal the owner.
            */
            configIcon: function (type,args,obj) {

                var sIcon = args[0],
                    oBody = this.body,
                    sCSSClass = SimpleDialog.ICON_CSS_CLASSNAME,
    				aElements,
                    oIcon,
                    oIconParent;

                if (sIcon && sIcon != "none") {

                    aElements = Dom.getElementsByClassName(sCSSClass, "*" , oBody);

    				if (aElements.length === 1) {

    					oIcon = aElements[0];
                        oIconParent = oIcon.parentNode;

                        if (oIconParent) {

                            oIconParent.removeChild(oIcon);

                            oIcon = null;

                        }

    				}

                    if (sIcon.indexOf(".") == -1) {

                        oIcon = document.createElement("span");
                        oIcon.className = (sCSSClass + " " + sIcon);
                        oIcon.innerHTML = "&#160;";

                    } else {

                        oIcon = document.createElement("img");
                        oIcon.src = (this.imageRoot + sIcon);
                        oIcon.className = sCSSClass;

                    }

                    if (oIcon) {

                        oBody.insertBefore(oIcon, oBody.firstChild);

                    }

                }

            },

            /**
            * Fired when the "text" property is set.
            * @method configText
            * @param {String} type The CustomEvent type (usually the property name)
            * @param {Object[]} args The CustomEvent arguments. For configuration
            * handlers, args[0] will equal the newly applied value for the property.
            * @param {Object} obj The scope object. For configuration handlers,
            * this will usually equal the owner.
            */
            configText: function (type,args,obj) {
                var text = args[0];
                if (text) {
                    this.setBody(text);
                    this.cfg.refireEvent("icon");
                }
            },

            // END BUILT-IN PROPERTY EVENT HANDLERS //

            /**
            * Returns a string representation of the object.
            * @method toString
            * @return {String} The string representation of the SimpleDialog
            */
            toString: function () {
                return "SimpleDialog " + this.id;
            }

            /**
            * <p>
            * Sets the SimpleDialog's body content to the HTML specified.
            * If no body is present, one will be automatically created.
            * An empty string can be passed to the method to clear the contents of the body.
            * </p>
            * <p><strong>NOTE:</strong> SimpleDialog provides the <a href="#config_text">text</a>
            * and <a href="#config_icon">icon</a> configuration properties to set the contents
            * of it's body element in accordance with the UI design for a SimpleDialog (an
            * icon and message text). Calling setBody on the SimpleDialog will not enforce this
            * UI design constraint and will replace the entire contents of the SimpleDialog body.
            * It should only be used if you wish the replace the default icon/text body structure
            * of a SimpleDialog with your own custom markup.</p>
            *
            * @method setBody
            * @param {String} bodyContent The HTML used to set the body.
            * As a convenience, non HTMLElement objects can also be passed into
            * the method, and will be treated as strings, with the body innerHTML
            * set to their default toString implementations.
            * <em>OR</em>
            * @param {HTMLElement} bodyContent The HTMLElement to add as the first and only child of the body element.
            * <em>OR</em>
            * @param {DocumentFragment} bodyContent The document fragment
            * containing elements which are to be added to the body
            */
        });

    }());

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